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son4ous [18]
2 years ago
7

EXPLAIN How did energy change form in the calorimeter lab?

Chemistry
2 answers:
Ann [662]2 years ago
8 0

As the food burned, <u><em>chemical energy</em></u> was transformed into <u><em>thermal energy</em></u>. Thus, a form of <u><em>potential energy</em></u> was converted to a form of <u><em>kinetic energy</em></u>.

Hope I helped! :)

timama [110]2 years ago
7 0

Answer:

Chemical energy is converted into thermal and mechanical energy while kinetic energy into potential energy.

Explanation:

As the breakdown of food started, the chemical energy present in the food substances converted into thermal energy and mechanical energy. Thermal or heat energy is used to maintain the body's temperature while mechanical energy is used in other activities such as movement of muscles. Kinetic energy is also converted into potential energy when the object moves from top of a place such as hill.

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Energy 1:Question 3
liberstina [14]

Answer: The statement, atoms in the sand were moving more quickly best describes why the  temperature of the sand increased.

Explanation:

As Sun rises in the morning everyday and the heat energy radiations given by the Sun falls on a number of objects on our surroundings. As a result, the objects absorb this heat energy till afternoon due to which they become hot.

Hence, atoms of the objects gain kinetic energy due to which they move quickly. This shows that the temperature of the object (sand here) increases.

When Maria walked in the same area in the afternoon, the sand was hot as its particles have gained kinetic energy due to which they move rapidly from one place to another. Hence, sand feels more hot in the afternoon in the same area where she walked.

Thus, we can conclude that the statement the atoms in the sand were moving more quickly best describes why the  temperature of the sand increased.

3 0
2 years ago
find the percent yield,if 6.0g of Licl are actually produced and the theoretical yield is 35.4g of Licl.​
drek231 [11]

Answer:

Percent yield = 17%

Explanation:

Given data:

Actual yield of lithium chloride = 6.0 g

Theoretical yield of lithium chloride = 35.4 g

Percent yield = ?

Solution:

Formula:

Percent yield = (actual yield / theoretical yield )× 100

Now we will put the values in formula.

Percent yield = (6.0 g/ 35.4 g)× 100

Percent yield = 0.17 × 100

Percent yield = 17%

8 0
3 years ago
A solution is made by dissolving 26.42g of (NH4)2so4 in enough h2o to make 50.00ml of solution
DochEvi [55]
Moles of ammonium sulfate = 26.42/molar mass of (NH4)2SO4
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Molarity = moles of ammonium sulfate/volume of solution
             =                0.19/50x10^-3
             =                    3.8M

6 0
3 years ago
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Oceans cover over 70% of Earth's surface, and precipitation constantly adds freshwater to the oceans. Yet, ocean levels remain r
Rzqust [24]

Answer:

D.

Explanation:

I had looked it up on the quiz site

6 0
2 years ago
Read 2 more answers
A "half-reaction” is one which may:
DaniilM [7]

Answer:

d

Explanation:

8 0
3 years ago
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